PROX-1

PROX-1 is an active satellite operated by Georgia Institute of Technology (United States), launched on 2019-06-25 from Cape Canaveral, Florida. It orbits in Low Earth Orbit (LEO) at altitudes between 592 km and 600 km with an inclination of 24.0°. It travels at approximately 27,230 km/h (7.56 km/s), completing one full orbit every 97 minutes — that’s roughly 14.91 orbits per day. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~3–10 years. Orbital Radar tracks PROX-1 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

PROX-1 orbits at an average altitude of 596 km in the core of Low Earth Orbit, the most heavily utilised altitude band. The balance of moderate drag (limiting debris accumulation) and short signal path (enabling low-latency links and high-resolution imaging) makes this regime the default for most commercial and government missions. Within ±50 km of PROX-1’s average altitude, there are currently 2,115 active payloads and 634 tracked debris or rocket body fragments — notable neighbours include ONEWEB-0050, STARLINK-3005, STARLINK-3090. This makes it one of the more crowded altitude bands, containing roughly 12.1% of all active satellites. With an inclination of 24.0°, PROX-1 passes over latitudes between 24.0°N and 24.0°S, covering the tropical and temperate zones where most of the world’s population resides. Low-to-mid inclination orbits are efficient to reach from equatorial and mid-latitude launch sites. United States operates approximately 12,360 active satellites in total, of which 1,569 share a similar altitude band with PROX-1.